Sheet Problems Use Home Collections Sheet Grippers. These Grippers stop pop-off corners and sliding sheets and promote smooth, snug, and wrinkle-free sheets. Applies quickly and cuts bed making time. Keep sheets in place throughout the night.Sheet grippers are ideal for any size sheet corner and even works with water beds. This 4 pack is made of a strong elastic band and has durable rubber grips with plastic closures. Item is packaged on a blister card with hanging hole. Easily extends from 7 1/2" to 11 1/2". Elastic band is 4 1/2" x 3/4" when resting. Grippers are 1 1/4" x 1 1/2".